Top roll saddle



March 30, 1937.. J. 1.. TRUSLOW TOP ROLL SADDLE Filed April 17, 1955'INVENTOR. I

Patented Mar. 30, 1937 UNITED STATES PATENT OFFICE TOP ROLL SADDLEApplication April 1'7, 1935, Serial No. 16,851

11 Claims.

This invention relates to weighting sytems for the drawing rolls ofspinning and like textile machines and more particularly to the saddlesfor distributing pressure to the rolls. Its purposes, which areindependent of each other although all accomplished in a singlestructure, include better facilities for cleanliness, better wearingalignment for the saddle bearings on their respective rolls and closermaintenance of the top roll spacing, as well as generally theimprovement of this class of device.

Fig. 1 is a sectional end elevation of parts of a spinning frame showingthe preferred form of the new saddle;

Fig. 2 is a sectional side elevation of the saddle;

Fig. 3 is a partial plan view of the saddle and Figs. 4 and 5 aretransverse sections taken along the lines 4-4 and 55 in Fig. 2,respectively.

Fig. 1 shows parts of a conventional spinnin frame comprising the rollerbeam ill, the roll stand H, the lower front, intermediate and backdrawing rolls l2, l3 and M, and the corresponding top rolls 3!}, 3i and32, all mounted as usual and with the usual adjustments which will berecognized.

The improved saddle comprises a front bearing member or block 40, a backbearing member or under saddle 4i and a cover or top saddle 42. The topsaddle 42 is preferably formed of sheet metal which will not readilytarnish, and is of inverted U-shape in cross section, as shown in Figs.4 and 5. It extends from the foremost to the rearmost top roll and hasan upper surface which is smooth or flat from end to end and devoid ofany projections or protuberances such as might constitute obstructionsto wiping off lint and dirt. All of its associated parts including thefront bearing block 40 and the under saddle 4|, are disposed within thespace between its depending side walls and are substantially covered andconcealed by them, thereby producing a new and distinctive effect inthis class of device, which'makes it particularly easy to clean and keepclean.

The front bearing member or block 49 which is crotched or grooved, asindicated at 43, to fit the front top roll is formed with an upper partor shank of reduced width as shown at 44 (Fig. 4). This shank fitsloosely between the sides of the top saddle and is secured in placetherein by a pivot in the form of a headed stud 45 which is insertedloosely through an opening in the upper wall of the top saddle andcountersunk therein. By virtue of this connection the lock it? is freeto swivel on an axis transverse to its roll, within the limits imposedby the side Walls, and can thus adjust itself relatively to the saddlewhen the latter is not strictly at a right angle to the roll therebyavoiding unsymmetrical wear. This feature is applicable with the sameadvantage to forms of top roll saddles other than that specificallyshown herein.

The under saddle il also fits loosely inside of the top saddle 42, asshown in Fig. 5, and is secured therein by a pin and slot connectionthrough which the weight of the top saddle is imparted to it. Preferablythe under saddle is provided with the cross pin, marked 41, and the topsaddle side walls with the slots, marked 48. By this means the top andunder saddles are permanently united in relatively movable or pivotalrelation not to be separated except by withdrawing the cross pin. Theslots are long enough to accommodate normal roll adjustments.Furthermore the slots are so located or sloped with reference to thedirection of pressure imparted by the stirrup as to have a cammingaction on the under saddle urging it forwardly for a purpose presentlydescribed.

The under saddle t! has a straight bearing portion 50 to engage theintermediate roll 3|, as shown in Fig. l, and a crotched bearing orrecess 52 with opposed fiat bearing surfaces 53 by which it hooks overand bears on the back top roll, the contact being along two separatedlines which are intended in the course of time to wear to the rollcurvature.

The stirrup 56 is connected to the under side of the top saddle beinghooked to a cross pin 55 secured to and extending between the dependingside walls thereof. The stirrup attachment is thus within and below thetop saddle but is easily detached when necessary. It can be connected toits Weight or spring by the conventional arrangement shown in thedrawing or by any other.

It has been found important that the back top roll 32 be kept to a fixedaxis of rotation more closely than results from the confinement of itsgudgeons in the cap bar recesses, and in which such gudgeons normallyfit rather loosely, and I accomplish this result by the camming actionof the slots 68 above referred to, which urges the under saddleforwardly and thereby pulls the gudgeons into proper contact with thefront walls of their recesses (indicated in dotted lines in Fig. 1) inthe cap bars 24, thus ensuring a non-varying location for the top rollaxis. This effect, as will be observed, occurs quite independently oftions to wiping,

5 material, I find it desirable to use a porous oil absorbent metal bywhich external application of oil is rendered substantially unnecessary.

Having thus described my invention and the advantages thereof, I do notwish to be limited to the details herein disclosed, otherwise than asset forth in the claims, but what I claim is:--

1. Weighting means for drawing rolls comprising a top saddle of invertedU-section exposing a smooth upper surface devoid of obstrucincombination with an under saddle and a stirrup both connected only tothe lower side of the top saddle and disposed between the side wallsthereof and said under saddle and stirrup having no parts extendingabove said top saddle.

2. Weighting means for drawing rolls as set forth in claim 1, in which afront bearing block is mounted below said top saddle and is looselyconnected thereto for angular movement in a plane substantially parallelto the upper surface of said top saddle.

3. Weighting means for drawing rolls as set forth in claim 1, in whichthe connection between the under saddle and the top saddle provides formovement of said under saddle relative to said top saddle in a verticalplane and also provides for sliding relative movement between said partsin a plane perpendicular to the axes of the drawing rolls.

4. Weighting means for drawing rolls comprising a top saddle, a frontbearing member, a back bearing member and means to loosely butpermanently secure said three members together, said securing meansproviding for substantial forward and rearward movement of said backmember relative to said top saddle and for swivel movement of said frontmember relative to said top saddle in a plane substantially parallel tothe plane of the axes of said drawing rolls, said 5 back bearing memberapplying pressure to the back and intermediate top rolls and said frontbearing member applying pressure to the front top roll only.

5. Weighting means for drawing rolls comprising a top saddle, an undersaddle and a stir rup, in combination with a bearing block pivotallyattached to one end of the top saddle and having its pivotal axissubstantially perpendicular to the axis of the roll on which such blockbears.

6. Weighting means comprising a top roll saddle, a front bearing member,a back bearing member, and means loosely but permanently uniting saidthree members together and providing relative movement between saidmembers, said means including a swivel connection between said topsaddle and said front bearing member, the swivel axis being transverseto the roll axis, and means for limiting the swivelling motion.

7. Weighting means for drawing rolls comprising a top saddle and astirrup, front and back bearing members having crotch engagement withtheir respective rolls and connected to said saddle, the connectionbetween one of said members and the saddle including a cam surface 00-operating with a portion of the other member and sloped to draw saidmembers toward each other under the pull of the-stirrup.

8. Weighting means for drawing rolls as set forth in claim 7, in whichthe front bearing member is loosely pivoted to said top saddle and haslimited angular movement relative thereto in a plane substantiallyparallel to the upper surface of said top saddle.

9. Weighting means for drawing rolls comprising a top saddle having acrotch bearing on one of the rolls, a stirrup connected thereto, anunder saddle for two other rolls and connection means between saidsaddles including a cam surface on one of them cooperating with a portion of the other member and sloped to urge the under saddle toward saidcrotch bearing.

10. Weighting means for drawing rolls comprising a top saddle ofinverted U-section having a bearing on a top roll, an under saddlepivotally and permanently connected to the top saddle, the connectingmeans comprising a cross pin on said under saddle and longitudinal slotsfor said pin in the depending side walls of said top saddle. I

11. Weighting means for drawing rolls comprising a top saddle, a frontbearing member pivotally attached to one end of the top saddle, astirrup connected to the lower side of the top saddle, a back bearingmember, and means for permanently connecting the back bearing member tothe top saddle, said connecting means including a cam surface sloped tourge the back bearing member towards the front bearing member.

JAMES L. TRUSLOW.

